Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation. 12 plus StartFraction 12 squared Over 2 EndFraction plus StartFraction 12 cubed Over 3 EndFraction plus midline ellipsis plus StartFraction 12 Superscript n Over n EndFraction12+ 122 2+ 123 3+⋯+ 12n n The summation starts at iequals=1. What is the upper limit of summation and the general term?

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

a

step-by-step explanation:

step-by-step explanation:

the answer is 128

4+4+2x

or

2x+8

step-by-step explanation: